#3F184B
Closest named color: Deep Violet (#490648). oklch(29.3% 0.097 317.5), rgb(63, 24, 75).
Aa
White text reads best on this color (14.54:1).
About this color
#3F184B is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.097 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.034 away. White text reads best on it, at 14.54:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.44:1 |
| White text | 14.54:1 |
Values
| HEX | #3F184B |
| RGB | rgb(63, 24, 75) |
| HSL | hsl(286, 52%, 19%) |
| OKLCH | oklch(29.3% 0.097 317.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3F184B | 14.54:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #3F184B | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #3F184B text on white | 14.54:1 | AAA | Lc 101.0 | Preferred for body text |
| #3F184B text on black | 1.44:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F3E3F9
oklch(93.5% 0.034 316.9)
-
Step 200
200
#EBCDF5
oklch(88.6% 0.063 317.6)
-
Step 300
300
#DFA9F1
oklch(80.9% 0.114 317.5)
-
Step 400
400
#CE76EA
oklch(70.6% 0.184 317.5)
-
Step 500
500
#C04AE4
oklch(63.1% 0.235 317.3)
-
Step 600
600
#AC1BD2
oklch(55.6% 0.256 317.3)
-
Step 700
700
#9401B5
oklch(49.1% 0.238 317.8)
-
Step 800
800
#780F93
oklch(42.7% 0.197 317.5)
-
Step 900
900
#611A75
oklch(37.7% 0.153 317.6)
-
Step 950
950 (this color)
#3F184B
oklch(29.3% 0.097 317.5)
#3F184B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #09274D | 0.093 |
| Deuteranopia (no green cones) | #1A2A4A | 0.080 |
| Tritanopia (no blue cones) | #3F212F | 0.062 |
| Achromatopsia (no color) | #292929 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F184B
#3F184B
oklch(29.3% 0.097 317.5)
- #123600
#123600
oklch(29.5% 0.09 137.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3F184B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.034
- Eggplant Purple #430541 ΔE 0.036
- Plum Purple #4E0550 ΔE 0.042
- Dark Purple #35063E ΔE 0.049
- Aubergine #3D0734 ΔE 0.050
- Eggplant #380835 ΔE 0.052
- Deep Purple #36013F ΔE 0.054
- Dark Plum #3F012C ΔE 0.066
Use #3F184B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.